Add limit parameter to search command (fix issue #2402)

[jespino]

No description provided.

[jespino]

This have a problem with a limit greater that 100 (this limit is in the crates.io API). Here I can do 3 things, allow only limits values between 1 to 100, allow any value and let it crash when value is greater than 100, or query as pages as needed for satisfy the limit.

Any suggestion?

[alexcrichton]

This looks good to me, I'm fine letting the maximum limit get defined by crates.io so we don't hardcode it in two places.

[alexcrichton]

Looks like a test may need to get updated as well?

[jespino]

The crates.io maximum is about API results pagination, I think isn't directly related with the maximum on cargo search command, but I think 100 results is enough for the command line interface. I will allow only values 1..100.

[alexcrichton]

Looks like the tests may still be failing?

[jespino]

Now tests are fixed, I think the problem is a temporary problem obtaining a package.

[alexcrichton]

@bors: r+ 53c9374

Thanks!

[bors]

⌛️ Testing commit 53c9374 with merge 075e824...

[bors]

☀️ Test successful - cargo-linux-32, cargo-linux-64, cargo-mac-32, cargo-mac-64, cargo-win-gnu-32, cargo-win-gnu-64, cargo-win-msvc-32, cargo-win-msvc-64